The only function I used and still somewhat miss is the ability to designate each port for something other than intended. I often reset or reinstall windows and each time it's different. I have noticed over the past few years that the functionality has changed drastically.
I have to ask what the realtek audio management software does that you need it for. Find helpful customer reviews and review ratings for ASUS ROG Centurion true 7.1 surround gaming headset with digital microphone, ESS headphone amplifier, USB audio station, interchangeable ear cushions for PC at. Make sure to connect the microphone to the desktop and then re-launch it, and it will. The problem seems to be between the line in and the RealTek HD Audio Manager because the surround sound works fine with Guitar Rig 4 and any other sound but when i look at my line in volume in the volume mixer and i strum my guitar, the volume doesnt go up. I plugged it in, the laptop has only one plug but it seems it works as both an output and microphone jack this worked well. You have to exit the program from the taskbar, and then re-launch it. I got my InspiGaming laptop at the start of the year all was working well until my old headset was destroyed so I bought a new one (Razer Kraken ProV2). But I do know that when I'm streaming on discord with an external usb dac/amp and an onboard input with a modmic, I get crosstalk which has me believing that part is software based. Realtek audio will pick up headset headphone but not mic. I don't know if it's an onboard thing or something to do with the wiring after the output/input. But to address your original problem, headsets have an unfortunate side effect of bleeding output with input.
Please let me know if you found out how to get the UI back.
Same thing for me i deleted the driver because i was being an idiot and thinking that if i get rid of it people wouldnt hear my youtube videos or voice chat going from my headphones to my mic.